Chromium Often Is Electroplated on Other Metals and Even Plastics

question 165

Multiple Choice

Chromium often is electroplated on other metals and even plastics to produce a shiny metallic appearance. How many grams of chromium would plate out from a solution of Cr(NO₃) ₃ when 10 amps of current are passed through the electrolytic cell for 5.36 hours?

• A)17.3 g
• B)34.7 g
• C)52.0 g
• D)104 g
• E)11.6 g

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Definitions:

FIFO Method

A process costing method in which equivalent units and unit costs relate only to work done during the current period.

Process Costing System

A technique for evaluating the cost of production where costs are assigned to batches of products, typically applicable in manufacturing environments where products are identical.

Dust Density Sensors

Devices used to measure the concentration of particulate matter in the air to monitor pollution levels or workplace safety.

First-In, First-Out Method

An inventory valuation method assuming that the first items purchased are also the first items sold.